package cn.source.framework.config;

import cn.source.framework.security.filter.JwtAuthenticationTokenFilter;
import cn.source.framework.security.handle.AuthenticationEntryPointImpl;
import cn.source.framework.security.handle.LogoutSuccessHandlerImpl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.http.HttpMethod;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
import org.springframework.security.web.authentication.logout.LogoutFilter;
import org.springframework.web.filter.CorsFilter;

/**
 * spring security配置
 *
 * @author ruoyi
 */
@EnableGlobalMethodSecurity(prePostEnabled = true, securedEnabled = true)
public class SecurityConfig extends WebSecurityConfigurerAdapter {
    /** 自定义用户认证逻辑 */
    @Autowired private UserDetailsService userDetailsService;

    /** 认证失败处理类 */
    @Autowired private AuthenticationEntryPointImpl unauthorizedHandler;

    /** 退出处理类 */
    @Autowired private LogoutSuccessHandlerImpl logoutSuccessHandler;

    /** token认证过滤器 */
    @Autowired private JwtAuthenticationTokenFilter authenticationTokenFilter;

    /** 跨域过滤器 */
    @Autowired private CorsFilter corsFilter;

    /**
     * 解决 无法直接注入 AuthenticationManager
     *
     * @return
     * @throws Exception
     */
    @Bean
    @Override
    public AuthenticationManager authenticationManagerBean() throws Exception {
        return super.authenticationManagerBean();
    }

    /**
     * anyRequest | 匹配所有请求路径 access | SpringEl表达式结果为true时可以访问 anonymous | 匿名可以访问 denyAll | 用户不能访问
     * fullyAuthenticated | 用户完全认证可以访问（非remember-me下自动登录） hasAnyAuthority |
     * 如果有参数，参数表示权限，则其中任何一个权限可以访问 hasAnyRole | 如果有参数，参数表示角色，则其中任何一个角色可以访问 hasAuthority |
     * 如果有参数，参数表示权限，则其权限可以访问 hasIpAddress | 如果有参数，参数表示IP地址，如果用户IP和参数匹配，则可以访问 hasRole |
     * 如果有参数，参数表示角色，则其角色可以访问 permitAll | 用户可以任意访问 rememberMe | 允许通过remember-me登录的用户访问 authenticated
     * | 用户登录后可访问
     */
    @Override
    protected void configure(HttpSecurity httpSecurity) throws Exception {
        httpSecurity
                // CSRF禁用，因为不使用session
                .csrf()
                .disable()
                // 认证失败处理类
                .exceptionHandling()
                .authenticationEntryPoint(unauthorizedHandler)
                .and()
                // 基于token，所以不需要session
                .sessionManagement()
                .sessionCreationPolicy(SessionCreationPolicy.STATELESS)
                .and()
                // 过滤请求
                .authorizeRequests()
                // 对于登录login 验证码captchaImage 判断是否开启注册getRegister 注册register 允许匿名访问
                .antMatchers("/login", "/captchaImage", "/getRegister", "/register")
                .anonymous()
                .antMatchers(
                        HttpMethod.GET,
                        "/",
                        "/*.html",
                        "/**/*.html",
                        "/**/*.css",
                        "/**/*.js",
                        "/profile/**",
                        "/websocket/**")
                .permitAll()
                .antMatchers("/swagger-ui.html")
                .anonymous()
                .antMatchers("/swagger-resources/**")
                .anonymous()
                .antMatchers("/webjars/**")
                .anonymous()
                .antMatchers("/*/api-docs")
                .anonymous()
                .antMatchers("/druid/**")
                .anonymous()
//                .antMatchers("/api/**")
//                .anonymous()
                // 除上面外的所有请求全部需要鉴权认证
                .anyRequest()
                .authenticated()
                .and()
                .headers()
                .frameOptions()
                .disable();
        httpSecurity.logout().logoutUrl("/logout").logoutSuccessHandler(logoutSuccessHandler);
        // 添加JWT filter
        httpSecurity.addFilterBefore(
                authenticationTokenFilter, UsernamePasswordAuthenticationFilter.class);
        // 添加CORS filter
        httpSecurity.addFilterBefore(corsFilter, JwtAuthenticationTokenFilter.class);
        httpSecurity.addFilterBefore(corsFilter, LogoutFilter.class);
    }

    /** 强散列哈希加密实现 */
    @Bean
    public BCryptPasswordEncoder bCryptPasswordEncoder() {
        return new BCryptPasswordEncoder();
    }

    /** 身份认证接口 */
    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(userDetailsService).passwordEncoder(bCryptPasswordEncoder());
    }
}
